Blast at 3-storey building in Germany's Bavaria, casualties unclear -- report

BERLIN -- An explosion hit a three-story house on Sunday in Germany's Bavaria, with three people currently missing, according to local media reports.

The explosion happened in Rettenbach am Auerberg. The shock made the top roof collapse and three people were probably trapped inside, local media reported, adding that several cars were destroyed and the neighboring house was also damaged.

The cause of the blast is still unclear.